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Finding the Fourth Proportional to 225,006.18, 310,495.82 and 123,012.68

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Solution

The fourth proportional to 225,006.18, 310,495.82 and 123,012.68 is: 169,750.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,006.18 : 310,495.82 = 123,012.68 : x
  2. Step 2: Convert to fraction form
    225,006.18/310,495.82 = 123,012.68/x
  3. Step 3: Cross multiply
    225,006.18x = 310,495.82 × 123,012.68
  4. Step 4: Simplify right side
    225,006.18x = 38,194,922,947.00
  5. Step 5: Solve for x
    x = 38,194,922,947.00/225,006.18
  6. Step 6: Final answer
    x = 169,750.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.